Investigation of the mechanism of the reaction B-10(d, p)gamma B-11 at E-d=15.3 MeV by the method of angular p gamma correlationsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:The results are presented that were obtained by measuring the differential cross sections for the reaction B-10(d, p)B-11 occurring at E-d = 15.3 MeV and leading to the production of a B-11 nucleus in the ground state (3/2(-)) and in the lowest two excited states (the 1/2(-) state at 2.125 MeV and the 5/2(-) state at 4.445 MeV). The energy dependence of the differential cross section for this reaction was measured for several proton emission angles in the energy range E-d = 12-15.3 MeV. The double-differential cross sections for the reaction B-10(d, p gamma)B-11 were measured for the 5/2(-) state of the B-11 nucleus at 4.445 MeV, and the angular dependences of the even spin-tensor components of the density matrix were reconstructed oil the basis of these data. The angular dependences of the populations of magnetic Sublevels are also given. The experimental results in question are compared with their theoretical counterparts obtained under the assumption of various reaction mechanisms (neutron stripping, heavy-particle stripping, and a two-step mechanism that takes into account the delay of interaction). Oil the basis of this comparison, the deformation parameters of the boron nuclei were found to be beta(2)(B-10) = -0.55 and beta(2)(B-11) = 0.4. (C) 2005 Pleiades Publishing, Inc.